数据存储---GreenPlum实践

GreenPlum作为一个很好的开源的数据仓库,一直想体验一把,最近装了一个.关于安装,网上资料介绍也多了不少,至少越来越多,不过真正装一把才知道还是有各种坑的,不是那么一帆风顺的.

Greenplum在线安装文档 http://gpdb.docs.pivotal.io/500/install_guide/prep_os_install_gpdb.html#topic8

整个文档的确是相当长,而且还需要一点E文和Linux.我也没有完全按照上面说的来操作.下面记录下基本的操作和遇到的一些问题.

1, 调整系统参数,具体的不贴了,文档上面也有,Centos6.5和7上面的操作还是有些区别的

vi /etc/sysctl.conf
vi /etc/security/limits.conf

2, 防火墙和HOSTS配置,这些操作看似简单,但是最容易出错,一定要注意检查.

3, 下载,解压,安装,具体步骤省略......

gpadmin用户下

vi ~/.bash_profile

source /usr/local/greenplum-db/greenplum_path.sh
export MASTER_DATA_DIRECTORY=/data/master/gpseg-1

  或者 source /usr/local/greenplum-db/greenplum_path.sh

指定hostfile_exkeys文件,里面包括所有的主机,这个文件放的位置可以随意,只要下面执行的能找到文件或者参数里面把路径加上就可以

  gpseginstall -f hostfile_exkeys

确认安装情况

gpssh -f hostfile_exkeys -e ls -l $GPHOME

gpssh-exkeys -f hostfile_exkeys

MASTER上创建数据存储目录
mkdir /data/master
chown gpadmin /data/master

Segment上创建数据存储目录
gpssh -f hostfile_gpssh_segonly -e 'mkdir /data/primary'
gpssh -f hostfile_gpssh_segonly -e 'mkdir /data/mirror'
gpssh -f hostfile_gpssh_segonly -e 'chown gpadmin /data/primary'
gpssh -f hostfile_gpssh_segonly -e 'chown gpadmin /data/mirror'

4, 修改配置文件

cd /home/gpadmin/gpconfigs (没有就创建目录)

vi gpinitsystem_config

ARRAY_NAME="EMC Greenplum DW"
SEG_PREFIX=gpseg
PORT_BASE=40000

declare -a DATA_DIRECTORY=(/data/primary)

MASTER_HOSTNAME=vm11
MASTER_DIRECTORY=/data/master
MASTER_PORT=5432

TRUSTED_SHELL=ssh
CHECK_POINT_SEGMENTS=8
ENCODING=UNICODEdeclare -a MIRROR_DATA_DIRECTORY=(/data/mirror)

DATABASE_NAME=gpexmp
MACHINE_LIST_FILE=/home/gpadmin/seg_hosts

我把所有的注释都去掉了,这里面几个是一定要配置的,需要注意!

5, 开始初始化GP.

gpinitsystem -c /home/gpadmin/gpconfigs/gpinitsystem_config 执行之后的日志是这样的:

[gpadmin@vm11 ~]$ gpinitsystem -c /home/gpadmin/gpconfigs/gpinitsystem_config
20171006:06:17:43:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Checking configuration parameters, please wait...
20171006:06:17:43:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Reading Greenplum configuration file /home/gpadmin/gpconfigs/gpinitsystem_config
20171006:06:17:43:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Locale has not been set in /home/gpadmin/gpconfigs/gpinitsystem_config, will set to default value
20171006:06:17:44:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Locale set to en_US.utf8
20171006:06:17:44:109203 gpinitsystem:vm11:gpadmin-[INFO]:-MASTER_MAX_CONNECT not set, will set to default value 250
20171006:06:17:44:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Checking configuration parameters, Completed
20171006:06:17:44:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Commencing multi-home checks, please wait...
...
20171006:06:17:45:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Configuring build for standard array
20171006:06:17:45:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Commencing multi-home checks, Completed
20171006:06:17:45:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Building primary segment instance array, please wait...
...
20171006:06:17:47:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Checking Master host
20171006:06:17:47:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Checking new segment hosts, please wait...
..20171006:06:17:52:109203 gpinitsystem:vm11:gpadmin-[WARN]:-----------------------------------------------------------
20171006:06:17:52:109203 gpinitsystem:vm11:gpadmin-[WARN]:-Host vm22 is assigned as localhost in /etc/hosts
20171006:06:17:52:109203 gpinitsystem:vm11:gpadmin-[WARN]:-This will cause segment->master communication failures
20171006:06:17:52:109203 gpinitsystem:vm11:gpadmin-[WARN]:-Remove vm22 from local host line in /etc/hosts
20171006:06:17:52:109203 gpinitsystem:vm11:gpadmin-[WARN]:-----------------------------------------------------------
.
20171006:06:17:54:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Checking new segment hosts, Completed
20171006:06:17:54:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Greenplum Database Creation Parameters
20171006:06:17:54:109203 gpinitsystem:vm11:gpadmin-[INFO]:---------------------------------------
20171006:06:17:54:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Master Configuration
20171006:06:17:54:109203 gpinitsystem:vm11:gpadmin-[INFO]:---------------------------------------
20171006:06:17:54:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Master instance name = EMC Greenplum DW
20171006:06:17:54:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Master hostname = vm11
20171006:06:17:54:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Master port = 5432
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Master instance dir = /data/master/gpseg-1
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Master LOCALE = en_US.utf8
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Greenplum segment prefix = gpseg
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Master Database = gpexmp
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Master connections = 250
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Master buffers = 128000kB
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Segment connections = 750
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Segment buffers = 128000kB
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Checkpoint segments = 8
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Encoding = UNICODE
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Postgres param file = Off
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Initdb to be used = /usr/local/greenplum-db/./bin/initdb
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-GP_LIBRARY_PATH is = /usr/local/greenplum-db/./lib
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Ulimit check = Passed
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Array host connect type = Single hostname per node
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Master IP address [1] = 192.168.122.1
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Master IP address [2] = 192.168.37.128
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Master IP address [3] = fe80::20c:29ff:feb1:4c90
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Standby Master = Not Configured
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Primary segment # = 1
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Total Database segments = 3
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Trusted shell = ssh
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Number segment hosts = 3
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Mirroring config = OFF
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:----------------------------------------
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Greenplum Primary Segment Configuration
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:----------------------------------------
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-vm11 /data/primary/gpseg0 40000 2 0
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-vm22 /data/primary/gpseg1 40000 3 1
20171006:06:17:55:109203 gpinitsystem:vm11:gpadmin-[INFO]:-vm33 /data/primary/gpseg2 40000 4 2
Continue with Greenplum creation Yy/Nn>
Y
20171006:06:18:22:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Building the Master instance database, please wait...
20171006:06:18:30:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Starting the Master in admin mode
20171006:06:18:56:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Commencing parallel build of primary segment instances
20171006:06:18:57:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Spawning parallel processes batch [1], please wait...
...
20171006:06:18:57:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Waiting for parallel processes batch [1], please wait...
............................
20171006:06:19:26:109203 gpinitsystem:vm11:gpadmin-[INFO]:------------------------------------------------
20171006:06:19:26:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Parallel process exit status
20171006:06:19:26:109203 gpinitsystem:vm11:gpadmin-[INFO]:------------------------------------------------
20171006:06:19:26:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Total processes marked as completed = 3
20171006:06:19:26:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Total processes marked as killed = 0
20171006:06:19:26:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Total processes marked as failed = 0
20171006:06:19:26:109203 gpinitsystem:vm11:gpadmin-[INFO]:------------------------------------------------
20171006:06:19:27:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Deleting distributed backout files
20171006:06:19:27:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Removing back out file
20171006:06:19:27:109203 gpinitsystem:vm11:gpadmin-[INFO]:-No errors generated from parallel processes
20171006:06:19:27:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Restarting the Greenplum instance in production mode
20171006:06:19:27:122973 gpstop:vm11:gpadmin-[INFO]:-Starting gpstop with args: -a -l /home/gpadmin/gpAdminLogs -i -m -d /data/master/gpseg-1
20171006:06:19:27:122973 gpstop:vm11:gpadmin-[INFO]:-Gathering information and validating the environment...
20171006:06:19:27:122973 gpstop:vm11:gpadmin-[INFO]:-Obtaining Greenplum Master catalog information
20171006:06:19:27:122973 gpstop:vm11:gpadmin-[INFO]:-Obtaining Segment details from master...
20171006:06:19:27:122973 gpstop:vm11:gpadmin-[INFO]:-Greenplum Version: 'postgres (Greenplum Database) 4.3.16.1 build 1'
20171006:06:19:27:122973 gpstop:vm11:gpadmin-[INFO]:-There are 0 connections to the database
20171006:06:19:27:122973 gpstop:vm11:gpadmin-[INFO]:-Commencing Master instance shutdown with mode='immediate'
20171006:06:19:27:122973 gpstop:vm11:gpadmin-[INFO]:-Master host=vm11
20171006:06:19:27:122973 gpstop:vm11:gpadmin-[INFO]:-Commencing Master instance shutdown with mode=immediate
20171006:06:19:27:122973 gpstop:vm11:gpadmin-[INFO]:-Master segment instance directory=/data/master/gpseg-1
20171006:06:19:28:122973 gpstop:vm11:gpadmin-[INFO]:-Attempting forceful termination of any leftover master process
20171006:06:19:28:122973 gpstop:vm11:gpadmin-[INFO]:-Terminating processes for segment /data/master/gpseg-1
20171006:06:19:29:123060 gpstart:vm11:gpadmin-[INFO]:-Starting gpstart with args: -a -l /home/gpadmin/gpAdminLogs -d /data/master/gpseg-1
20171006:06:19:29:123060 gpstart:vm11:gpadmin-[INFO]:-Gathering information and validating the environment...
20171006:06:19:29:123060 gpstart:vm11:gpadmin-[INFO]:-Greenplum Binary Version: 'postgres (Greenplum Database) 4.3.16.1 build 1'
20171006:06:19:29:123060 gpstart:vm11:gpadmin-[INFO]:-Greenplum Catalog Version: '201310150'
20171006:06:19:29:123060 gpstart:vm11:gpadmin-[INFO]:-Starting Master instance in admin mode
20171006:06:19:30:123060 gpstart:vm11:gpadmin-[INFO]:-Obtaining Greenplum Master catalog information
20171006:06:19:30:123060 gpstart:vm11:gpadmin-[INFO]:-Obtaining Segment details from master...
20171006:06:19:30:123060 gpstart:vm11:gpadmin-[INFO]:-Setting new master era
20171006:06:19:30:123060 gpstart:vm11:gpadmin-[INFO]:-Master Started...
20171006:06:19:30:123060 gpstart:vm11:gpadmin-[INFO]:-Shutting down master
20171006:06:19:31:123060 gpstart:vm11:gpadmin-[INFO]:-Commencing parallel segment instance startup, please wait...
........
20171006:06:19:39:123060 gpstart:vm11:gpadmin-[INFO]:-Process results...
20171006:06:19:39:123060 gpstart:vm11:gpadmin-[INFO]:-----------------------------------------------------
20171006:06:19:39:123060 gpstart:vm11:gpadmin-[INFO]:- Successful segment starts = 3
20171006:06:19:39:123060 gpstart:vm11:gpadmin-[INFO]:- Failed segment starts = 0
20171006:06:19:39:123060 gpstart:vm11:gpadmin-[INFO]:- Skipped segment starts (segments are marked down in configuration) = 0
20171006:06:19:39:123060 gpstart:vm11:gpadmin-[INFO]:-----------------------------------------------------
20171006:06:19:39:123060 gpstart:vm11:gpadmin-[INFO]:-
20171006:06:19:39:123060 gpstart:vm11:gpadmin-[INFO]:-Successfully started 3 of 3 segment instances
20171006:06:19:39:123060 gpstart:vm11:gpadmin-[INFO]:-----------------------------------------------------
20171006:06:19:39:123060 gpstart:vm11:gpadmin-[INFO]:-Starting Master instance vm11 directory /data/master/gpseg-1
20171006:06:19:51:123060 gpstart:vm11:gpadmin-[INFO]:-Command pg_ctl reports Master vm11 instance active
20171006:06:19:53:123060 gpstart:vm11:gpadmin-[INFO]:-No standby master configured. skipping...
20171006:06:19:53:123060 gpstart:vm11:gpadmin-[INFO]:-Database successfully started
20171006:06:19:58:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Completed restart of Greenplum instance in production mode
20171006:06:19:58:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Loading gp_toolkit...
20171006:06:20:09:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Scanning utility log file for any warning messages
20171006:06:20:09:109203 gpinitsystem:vm11:gpadmin-[WARN]:-*******************************************************
20171006:06:20:09:109203 gpinitsystem:vm11:gpadmin-[WARN]:-Scan of log file indicates that some warnings or errors
20171006:06:20:09:109203 gpinitsystem:vm11:gpadmin-[WARN]:-were generated during the array creation
20171006:06:20:09:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Please review contents of log file
20171006:06:20:09:109203 gpinitsystem:vm11:gpadmin-[INFO]:-/home/gpadmin/gpAdminLogs/gpinitsystem_20171006.log
20171006:06:20:09:109203 gpinitsystem:vm11:gpadmin-[INFO]:-To determine level of criticality
20171006:06:20:09:109203 gpinitsystem:vm11:gpadmin-[INFO]:-These messages could be from a previous run of the utility
20171006:06:20:09:109203 gpinitsystem:vm11:gpadmin-[INFO]:-that was called today!
20171006:06:20:09:109203 gpinitsystem:vm11:gpadmin-[WARN]:-*******************************************************
20171006:06:20:09:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Greenplum Database instance successfully created
20171006:06:20:09:109203 gpinitsystem:vm11:gpadmin-[INFO]:-------------------------------------------------------
20171006:06:20:09:109203 gpinitsystem:vm11:gpadmin-[INFO]:-To complete the environment configuration, please
20171006:06:20:09:109203 gpinitsystem:vm11:gpadmin-[INFO]:-update gpadmin .bashrc file with the following
20171006:06:20:09:109203 gpinitsystem:vm11:gpadmin-[INFO]:-1. Ensure that the greenplum_path.sh file is sourced
20171006:06:20:09:109203 gpinitsystem:vm11:gpadmin-[INFO]:-2. Add "export MASTER_DATA_DIRECTORY=/data/master/gpseg-1"
20171006:06:20:09:109203 gpinitsystem:vm11:gpadmin-[INFO]:- to access the Greenplum scripts for this instance:
20171006:06:20:09:109203 gpinitsystem:vm11:gpadmin-[INFO]:- or, use -d /data/master/gpseg-1 option for the Greenplum scripts
20171006:06:20:10:109203 gpinitsystem:vm11:gpadmin-[INFO]:- Example gpstate -d /data/master/gpseg-1
20171006:06:20:10:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Script log file = /home/gpadmin/gpAdminLogs/gpinitsystem_20171006.log
20171006:06:20:10:109203 gpinitsystem:vm11:gpadmin-[INFO]:-To remove instance, run gpdeletesystem utility
20171006:06:20:10:109203 gpinitsystem:vm11:gpadmin-[INFO]:-To initialize a Standby Master Segment for this Greenplum instance
20171006:06:20:10:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Review options for gpinitstandby
20171006:06:20:10:109203 gpinitsystem:vm11:gpadmin-[INFO]:-------------------------------------------------------
20171006:06:20:10:109203 gpinitsystem:vm11:gpadmin-[INFO]:-The Master /data/master/gpseg-1/pg_hba.conf post gpinitsystem
20171006:06:20:10:109203 gpinitsystem:vm11:gpadmin-[INFO]:-has been configured to allow all hosts within this new
20171006:06:20:10:109203 gpinitsystem:vm11:gpadmin-[INFO]:-array to intercommunicate. Any hosts external to this
20171006:06:20:10:109203 gpinitsystem:vm11:gpadmin-[INFO]:-new array must be explicitly added to this file
20171006:06:20:10:109203 gpinitsystem:vm11:gpadmin-[INFO]:-Refer to the Greenplum Admin support guide which is
20171006:06:20:10:109203 gpinitsystem:vm11:gpadmin-[INFO]:-located in the /usr/local/greenplum-db/./docs directory
20171006:06:20:10:109203 gpinitsystem:vm11:gpadmin-[INFO]:-------------------------------------------------------

出错过好几次,总算搞定了. gpstop出错,目录存在,系统已经在运行...等等.

ps -ef | grep gpadmin

[gpadmin@vm11 ~]$ kill -9 101840
[gpadmin@vm11 ~]$ rm /tmp/.s.PGSQL.5432.lock

rm -rf /data/master/gpseg-1
rm -rf /data/primary/gpseg1
rm -rf /data/primary/gpseg0
rm -rf /data/primary/gpseg1
rm -rf /data/primary/gpseg2

6, 运行SQL

[gpadmin@vm11 conf]$ psql -p 5432 -d gpexmp
psql (8.2.15)
Type "help" for help.

create table t1(id int primary key,cn int,name varchar(40)) distributed by (id);
insert into t1 select generate_series(1,100),generate_series(1,100),generate_series(1,100);

select gp_segment_id,count(1) from t1 group by 1;
gp_segment_id | count
---------------+-------
2 | 37
1 | 32
0 | 31

看到效果了,成功了

数据存储---GreenPlum实践相关推荐

Android数据存储安全实践
0x00 数据安全 Android操作系统自问世以来凭借其开放性和易用性成为当前智能手机的主流操作系统之一,作为与人们关系最密切的智能设备,越来越多的通讯录.短信.视频等隐私数据以明文的方式保存在手机 ...
GPkafka-Kafka数据导入GreenPlum实践
背景 Kafka是分布式消息订阅系统,有非常好的横向扩展性,可实时存储海量数据,是流数据处理中间件的事实标准.当通过Kafka和greenplum搭建流处理管道时,如何高速可靠的完成流数据加载,成为用 ...
智能互联网之数据存储实践
前言 1.NewSQL TiDB数据库应用与实践2.数据库数据无缝迁移方案设计3.缓存数据一致性实践4.深度解析Redis Cluster和Codis NewSQL数据库应用与实践 NewSQL产品 ...
腾讯监控系统服务器数据采集,日均采集1200亿数据点，腾讯千亿级服务器监控数据存储实践...
这套架构优点很明显,设计简洁.有最新数据缓存.数据分布式存储.可横向扩展,同时完全自研,各自实现细节可控. 但同样存在一些问题: 数据节点 Cache 程序异常,会导致内存缓存数据丢失,进而丢失监控数 ...
千亿级服务器监控数据存储实践
千亿级服务器监控数据存储实践背景近几年开源的大数据处理系统已经逐步发展到一个比较成熟的阶段了,各类大数据处理的场景都有了相应的解决方案,如同 mysql 在当今互联网公司中的关系数据存储广泛应用地 ...
沙龙报名 | 数据存储与微服务架构实践，6月15日上海
架构是科学也是艺术,优秀的架构案例往往可以拓宽我们的思路,让问题迎刃而解.本期携程技术沙龙邀请了携程.百度和阿里的优秀工程师带来各自领域最新的架构实践成果,特别集中在数据存储.微服务体系演进和应用监控 ...
《Python网络爬虫——从入门到实践》第六章将数据存储至MySQL数据库的学习心得与总结（出错与纠正方法）
<Python网络爬虫--从入门到实践>第六章将数据存储至MySQL数据库的学习心得与总结(出错与纠正方法) 作为刚开始入门python的小白,对大数据,网络爬虫比较感兴趣.完全是自我修炼 ...
咕咚运动数据存储实践
咕咚APP--综合运动社交平台咕咚APP致力于打造运动社交综合型平台,目前咕咚APP所涵盖人群包括:跑步.健走.骑行.游泳.滑雪.篮球.足球等多个领域,并为其提供相应功能进行承载. 咕咚 ...
数据存储技术的相关概念
一.背景在当今世界,大数据时代的来临,带来了信息技术发展的巨大变革,并深刻影响着社会生产和人民生活的方方面面. 如今,随着互联网以及物联网等技术的不断发展,越来越多的数据被生产出来.根据最新的统计, ...

数据存储---GreenPlum实践

数据存储---GreenPlum实践相关推荐

最新文章

热门文章